Regex question

PowerShell Help
1

I am working with the following match statement:

$folder -match "[A-Z][A-Z][A-Z][A-Z][A-Z0-9]_*"

However, it does not work the way I would it expect to work. I would expect

$folder="ABCDE-SomeOtherText"

to be false, and

$folder="ABCDE_SomeOtherText"

to be true.

Unfortunately, both arguments are true. How can I test if the 6th position is an underscore (_) and not anything else ?

Thanks!

2

This should do it:

    ^[A-Za-z]{5}_.+

^ marks the begin
[A-Za-z] = All A-Z ad a-z
{5} = 5 times [A-Za-z]
[_] = an underscore

3 
$folder1="ABCDE-SomeOtherText"
$folder2="ABCDE_SomeOtherText"
$Regex = '[A-Z]{5}_.+'
$folder1 -match $Regex
$folder2 -match $Regex
4

Thanks, works like a charm!